JPS56122518A - Digital differential filter - Google Patents

Digital differential filter

Info

Publication number
JPS56122518A
JPS56122518A JP2642180A JP2642180A JPS56122518A JP S56122518 A JPS56122518 A JP S56122518A JP 2642180 A JP2642180 A JP 2642180A JP 2642180 A JP2642180 A JP 2642180A JP S56122518 A JPS56122518 A JP S56122518A
Authority
JP
Japan
Prior art keywords
filter
coefficient
output
delay
differential
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2642180A
Other languages
Japanese (ja)
Inventor
Kensaku Fujii
Hitoshi Imagawa
Kazuhiro Maruyama
Akira Fukui
Ryujiro Muramatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP2642180A priority Critical patent/JPS56122518A/en
Publication of JPS56122518A publication Critical patent/JPS56122518A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters

Abstract

PURPOSE:To reduce an operation error and also not to make small the dynamic range of a signal which can be handled, by constituting in the transversal from a filter which can be formed by cascading differential filters. CONSTITUTION:A coefficient of the differential equation which has been obtained by expanding the product of a transfer function of each differential filter constituting a digital filter is made a weight coefficient, and the filter is constituted in the transversal form, which is weighted by multiplying a delay output obtiained from the delay circuits 31-38 for providing to an input signal the delay of integer times of the sampling period, by a coefficient which is inputted by the multipliers 70-78. The output obtained from said multipliers 70-78 is added cumulatively by the adder 6, and its result is arranged by the prescribed digit and is outputted as a filter output.
JP2642180A 1980-03-03 1980-03-03 Digital differential filter Pending JPS56122518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2642180A JPS56122518A (en) 1980-03-03 1980-03-03 Digital differential filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2642180A JPS56122518A (en) 1980-03-03 1980-03-03 Digital differential filter

Publications (1)

Publication Number Publication Date
JPS56122518A true JPS56122518A (en) 1981-09-26

Family

ID=12193057

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2642180A Pending JPS56122518A (en) 1980-03-03 1980-03-03 Digital differential filter

Country Status (1)

Country Link
JP (1) JPS56122518A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63188316A (en) * 1987-01-30 1988-08-03 井関農機株式会社 Running speed control apparatus of combine
JPH01300611A (en) * 1988-05-27 1989-12-05 Tech Res & Dev Inst Of Japan Def Agency Receiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63188316A (en) * 1987-01-30 1988-08-03 井関農機株式会社 Running speed control apparatus of combine
JPH01300611A (en) * 1988-05-27 1989-12-05 Tech Res & Dev Inst Of Japan Def Agency Receiver

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